Sokkia iM-50 Series Operator's Manual page 142

3. Input the elements for the curve 1.
Input the parameter A1, parameter A2, radius R, and offset
(additional distance for the BP: if the BP is located before the
route starting point, minus (-) is accompanied) and press
[OK].
• To set a dogleg, parameter A1 and A2 should be "Null" and
radius should be 0.
• When [IP] is pressed, the intersection angle, turning
direction, the lengths of the curves between BP-IP1 and
IP1-IP2 are calculated from the BP, the IPs and the curve
elements, and the results are displayed. After checking the
results, press [OK].
4. Input the elements for the next curve.
Input the parameter A1, parameter A2 and radius R for the
next curve.
• The offset is calculated automatically when "Next BP"
described in 25.8.8 Setting parameters is set to "EC/
KA2".The offset is not displayed when "Next BP" is set to
"IP".
• When [IP] is pressed, the intersection angle, turning
direction, the lengths of the curves between IP1-IP2 and
IP2-IP3 are calculated from the BP, the IPs and the curve
elements, and the results are displayed. After checking the
results, press [OK].
5. Continue inputting the elements for the following curves.
Input the elements for the following curves in the same
manner as shown in steps 3 and 4.
6. Quit inputting the curve elements.
When input of the elements for all curves is completed, press
[OK]. The screen will return to <Curve Element Setting>.
25.8.3 Displaying curve properties
It is possible to check the curve properties set in "25.8.2 Inputting Curve Elements". To make alterations, follow
the procedure described in "25.8.2 Inputting Curve Elements".
• The curve property data will be displayed in ascending order of curve number.
PROCEDURE
1. Input the IPs.
"25.8.1 Inputting IPs (Intersection Points)"
2. Input the elements for the curve.
25.8.2 Inputting Curve Elements
E l e m e n t 1
P a r a A 1
P a r a A 2
R a d i u s
S t . o f s
E l e m e n t 1
I A
D i r e c t .
B P - I P 1 :
I P 1 - I P 2 :
E l e m e n t 2
P a r a A 1
P a r a A 2
R a d i u s
S t . o f s
137
25. ROUTE SURVEYING
5 0 . 0 0 0 m
5 0 . 0 0 0 m
6 0 . 0 0 0 m
0 . 0 0 0 m
I P OK
90 00 00
: R i g h t
1 4 1 . 4 2 1 m
1 4 1 . 4 2 1 m
OK
< N u l l >
< N u l l >
5 0 . 0 0 0 m
1 9 5 . 3 8 6 m
I P OK